It isn’t just race cars, this approximate power level is widely available in consumer cars.
Hyundai Ioniq-5 and other vehicles can utilize the increasingly common 350 kW connectors — including the Lucid Air, the Porsche Taycan, the Audi E-Tron GT, and the GMC Hummer EV. [0]
This enables them to deploy the fastest DC charging in places where the grid cannot support it. It’s a big deal.
You can use the battery on top of the existing grid connection. So if you can charge the 790kWh battery pack on a 50kW grid connection you can charge at 400kW + 50kW = 450kW which seems overkill if you only need 350kW.
It might also be designed to support multiple EV’s as most cars can only stay at 350kW for a relatively short period.
Hyundai Ioniq-5 and other vehicles can utilize the increasingly common 350 kW connectors — including the Lucid Air, the Porsche Taycan, the Audi E-Tron GT, and the GMC Hummer EV. [0]
This enables them to deploy the fastest DC charging in places where the grid cannot support it. It’s a big deal.
[0] https://www.greencarreports.com/news/1135771_hyundai-ioniq-5...